Poisoned

There are two types of Poisoned Status Conditions: Poisoned and Badly Poisoned.

When a Pokemon is Poisoned, each turn it takes will cause it to lose 1/8th (12.5%) of its Max HP.

When a Pokemon is Badly Poisoned, each turn it takes will cause it to lose 1/16th (6.25%) of its Max HP and adds another 1/16th (6.25%) each turn. The first turn you lose 6.25% of your Max HP, the next turn you lose 12.5%, and the next turn you lose 18.75%, etc until your Pokemon faints.

Neither Poison- nor Steel-type Pokemon cannot be afflicted with either the Poisoned or Badly Poisoned conditions.